Gas-engine.



H. P. WILL.

GAS ENGINE.

APPLICATION FILED NOV. 4, 1911-.

Patented Mar. 3, 1914.

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WED SFTATESLPATENT rre HnivnY F. WILL, or MICHIGAN" CITY, INDIANA.

ores-ENGINE.

. if?) all whom it may concern: ;v

Be it known-that I, HEnRrF. WILL, a citizen of the United States of America, rev siding at IMichiganrGity, in. the county of liapor'te and State oflndiana, have invented certain new and useful Improvements in ids-Engines, ofwluch the following is a.

. ,cification, reference 'bei ng had therein to "the accompanying drawings.

This invention relates to gas engines and more especially .to the two-cycle variety thereof, and it has for-one of its objects the provision of animproved' engine 'of' this character in which a differential piston is employed, one section of which constitutes the power piston operated by the explosion in the cylinder while the other constitutes the compressing and charging device whereby fresh gas is supplied" to the explosion 53;)cylinder. 4

One feature ofthe invention is the control of the intake of the. gas from the carbureter by the movementof the piston which latter acts as a valve for automatically shutting of the piston stroke.

inafter appear and beparticularly defined in the claim. w I a v p The invention has been clearly-illustrated in the accompanying drawing which reprc' sents a vertical section of an engine embodyin my invention;

tefer/ring .to the drawing-1O denotes the engine base having attached. tothe bottom thereof the crank casing '11 which may re- 'ceive lubricant agitated and vaporized. by

der 20 which forms the lower part ofthe:

cylinder casting and forms an annular space- 21 between it'sinner surface and the outer surface ofthe shell 17 for the piston head 19, the latter having suitable packing rings to form a close joint.

The piston 16 first above mentioned is-op- '55 erative in an explosion chamber 22-secured to or forming an. integral part with the Specification of Letters Patent.

off and admitting. the 'gasat the proper point.

This piston is lowercylinder 20,- and'may be water jacketed in-any suitable-manner. In the presentinstance the piston is shown at 'half stroke of its rising movement so that consequently Patented Mar. 3,1914;

Applicationfiledilovember 4', 1911'. Serial No. 658,493.

the gas'charge -in the explosion cylinder 22 will now be compressed. At the same time- 'a fresh charge of gas is, drawn in by the piston 19' from a carbureter indicated herein t 23 and connected by a tube 2 1 with a-conmt 25 connected'with the interior of the cylinders 20 and 22 'respectively, through ports 26, 27. A check valve 23 will permit the influx of gas from the carbureter into the conduit 25 and con' p'ri-ses a seat member 29 rigidly held in'place andinter'posed-between the tube 24 and conduit. 25 as shown.

A spring-30 serves to hold the valve 28 nor mally closed. r g

When the charge in the explosion cylina. spark plug 31 driving the piston'down dfer 22 is compressed, the gas is'exploded by.

until its force-is practically expended and the products of combustion will then be eX-' v 7 port 26. Further objects of the invention will here- 'i From the above it will be understood that as the piston 19 travels downwardly, the

. gas charge drawn past the check valve 28 into the conduit during the upward movement i said piston will-be compressed in lower face of the piston 19 is reallythe actire. one as. far as COIDPIQSSHIO' the gas is concerned, means are provided or relieving any pressurewhich may be established above said piston in the 'cylinder'20 during the upward movement thereof these" means con 'sisting of a pipe 34 which connects the an- *nular clearance space 35' with the interior of the engine base 10"and crank case 11.

. Similarly, the clearance space 36 provided said conduit' so tliat when the piston 16 has moved downwardly eeenough to uncover the port 26, the-gas will quickly enter the explosion cylinder 22. Inasmuch as, only the between the double piston shell 16 18, which through a perforated closure 39 Changes 111' the particular construetum j;

and organization of some of, the elements of my improved engine may be made without departing from the spirit of the invention.

I claim:

Inagas engine, the combination with a closed casing, a cylindrical shell extending upwardly therefrom,- anda charging cylinder surrounding said shell and having an explosion chamber above the end of said shell, of a piston movablein said shell. and

extending into said explosion chamber, a sleeve movable upon'said' shell and havingan end thereof detachably connectedto said piston to cooperate 1 therewith in providing a head in said explosive chamber, a piston head carried by said sleeve Within said charging cylinder, a gas conduit connecting the charging cylinder and a port n said e3:-

plosive chamber, a gas. supply pipe for sand conduit, a check alve i'n-the gas supplypipe and opening into said conduit, and a relief and the space between'js'aidcharging cy inder and 'said;

pipe connecting said v casin' sleeve.

In testimony whereof I afiix, my signature in presence of two witnesses.

HENRY F. WILL.

\Vitnesses AN A M. DORR,

ANNA M. SHANNON. 

